Eco-friendly Formaldehyde-Free SPC Flooring XINGJI SPC flooring combines a rigid stone plastic composite core with a decorative wood-grain surface, delivering a healthy, durable and low-maintenance flooring solution for residential and commercial spaces. Formaldehyde-Free & Eco-friendly Core: made from natural limestone powder and eco-friendly PVC, with no added formaldehyde (E0 grade). Odorless and safe for bedrooms, nurseries and family living areas. Damp Proof & Mildew